AMinistry of Interior announcment at 9.55pm on Tuesday said the following provinces have made it mandatory to wear masks in public: Kanchanaburi, Prachinburi, Phetchaburi, Suphanburi, Ayutthaya, Samut Sakhon, Lopburi, Samut Prakan, Prachuap Khiri Khan, Chonburi, Saraburi, Trat, Nonthaburi, Nakhon Pathom, Chanthaburi, Bangkok, Chachoengsao, Pathum Thani, Sa Kaew, Ang Thong, Nakhon Nayok, Surat Thani, Trang, Nakhon Si Thammarat Narathiwat, Pattani, Phang Nga, Phuket, Ranong, Satun, Songkhla, Yala, Sukhothai, Tak, Phetchabun, Uttaradit, Lamphun, Chiang Mai, Khon Kaen, Yasothon, Nong Khai, Ubon Ratchathani, Chaiyaphum, Maha Sarakham, Mukdahan, Si Sa Ket, Surin, Udon Thani, Loei, Amnat Charoen, Buri Ram, Nakhon Phanom, Khon Kaen and Kalasin.